Huge yellow sponge.

[Joe Pusdesris]

I was in the middle of a re-aquascape and I found this monster

<table style="width:auto;"><tr><td><a href="http://picasaweb.google.com/lh/photo/Q9D811KdJYjVvEuqS_sniQ?feat=embedwebsite"><img src="http://lh6.ggpht.com/_xXnKvgKPgX4/Soiiteuce5I/AAAAAAAAAzc/zEQxIDgSPHA/s800/DSCF0007.JPG" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="http://picasaweb.google.com/deformative0/YellowSponge?feat=embedwebsite">Yellow sponge</a></td></tr></table>
<table style="width:auto;"><tr><td><a href="http://picasaweb.google.com/lh/photo/Ceyg-1Y2DrNzU9AN6R8qgQ?feat=embedwebsite"><img src="http://lh5.ggpht.com/_xXnKvgKPgX4/SoijSSJbpKI/AAAAAAAAA0E/biqyLGzI_-o/s800/DSCF0006.JPG" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="http://picasaweb.google.com/deformative0/YellowSponge?feat=embedwebsite">Yellow sponge</a></td></tr></table>

Not sure what to do with it, it is in my sump for now. I am considering throwing it away.

 

[Airwolf75]

Why not just keep it?

 

[Joe Pusdesris]

I read they emit all sorts of nasty toxins. Plus I didn't have any room for it in the new aquascaping, and took it out of the water to move it into the sump, so it's probably going to die anyway.

 

[Myrddraal]

I have a couple like that, they haven't harmed anything. They seem to be much more air tolerant that is commonly believed, I had a rock with one on it out of the water for ~30 mins one day and it's still alive. I squeezed any big air bubbles out of it when it went back into the water, and it's been fine since.

 

[Beatingmallory]

i have the same stuff in my tank but its white. is there actually a name for this kind? and i hope they dont emit toxins! im goiing to start a reef tank soon and i think thaT WOULD SUCK

 

[Godzillarex]

I have both the white and yellow types in my tank and they are doing fine. They filter the water for organics and grow pretty well. I wouldn't worry about them being unsafe.

 

[rhdoug]

Beautiful animal, gives free natural filtration, grew by itself...don't toss it!

 

[JamesJR]

<a href=showthread.php?s=&postid=15627372#post15627372 target=_blank>Originally posted</a> by Beatingmallory
i have the same stuff in my tank but its white. is there actually a name for this kind? and i hope they dont emit toxins! im goiing to start a reef tank soon and i think thaT WOULD SUCK

I think you will be fine. Many sponges do contain toxins but I haven't heard much about them being released into the water but more to keep them from being eaten. I have had sponges that look identical to that one and never had a problem.